In this review, we will be comparing LS50 Wireless and LS50 Wireless II, two Powered Bookshelf speakers by KEF Being Powered speakers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them. Let's have a brief look at the main features
of KEF LS50 Wireless and KEF LS50 Wireless II first before getting into our more
detailed comparison.
LS50 Wireless and LS50 Wireless II are members of KEF's LS series of speakers. Below you can find the loudspeakers from this series.
In the following sections, we will get into more detail in order to better understand how the KEF LS50 Wireless and KEF LS50 Wireless II compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both LS50 Wireless and LS50 Wireless II are 2-way speakers.
| Driver |
KEF LS50 Wireless |
KEF LS50 Wireless II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 5.25-inch
|
LS50 Wireless features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Magnesium/aluminum alloy Woofer . On the other hand, the LS50 Wireless II features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Aluminum Woofer .
Frequency Response
LS50 Wireless has a frequency range of 79-28k Hz whereas LS50 Wireless II has a frequency range of 45-28k Hz. With a minimum frequency of 45Hz, the LS50 Wireless II can go significantly deeper on the low side and provide stronger bass compared to the LS50 Wireless's min frequency of 79Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Cabinet Type and Port Position
Both LS50 Wireless and LS50 Wireless II have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare KEF LS50 Wireless's and KEF LS50 Wireless II's external dimensions. KEF LS50 Wireless has external dimensions of 301.6 x 200.0 x 336.5mm ( 11.875 x 7.875 x 13.25inch) whereas KEF LS50 Wireless II has external dimensions of 277.8 x 200.0 x 322.3mm ( 10.9375 x 7.875 x 12.6875inch) .
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the KEF LS50 Wireless is approximately 673.0cm2 / 104.3inch2 and base area of the KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2. The LS50 Wireless requires 4% more surface area than the LS50 Wireless II which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The KEF LS50 Wireless weighs 10.00kg / 22lbs and the KEF LS50 Wireless II weighs 10.00kg / 22lbs.
Here is a comparison of how LS50 Wireless and LS50 Wireless II's weights compare with the average, max and min weights in Powered Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of KEF LS50 Wireless?
Here are the items that are included inside the box of LS50 Wireless:
Wireless powered speaker (Right)Wireless powered speaker (Left)Two 6.5-feet AC power cords10-feet Cat-6 interconnect speaker cable6.5-feet USB-B to USB-A cable42
What's in the Box of KEF LS50 Wireless II?
Here are the items that come with the LS50 Wireless II:
2 Wireless powered speakersTwo 6.5-feet AC power cords10-feet Cat-6 interconnect speaker cableRemote control2 AAA batteries Quick Start Guide Important Safety Information Warranty Information
 RCA Connection |
Yes
vs
No
|
Connection via RCA input |
 Uni-Q Driver |
12th Generation
vs
11th Generation
|
Newer generation Driver |
 Low Frequency Response |
45 Hz
vs
79 Hz
|
Generates deeper bass |
 Height |
277mm
vs
301mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
644cm2 (200x322mm)
vs
673cm2 (200x336mm)
|
Takes less floor space |
 3.5mm Connection |
Yes
vs
No
|
Connection via 3.5mm AUX input |
 HDMI Input |
eARC
vs
No
|
Connect HDMI sources directly |
| General |
KEF LS50 Wireless |
KEF LS50 Wireless II |
| Brand |
KEF |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Frequency Response |
79-28k Hz |
45-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
230-watt RMS |
380-watt RMS |
| Watts Peak (Max) |
n/a |
760-watt RMS |
| Max Bit Depth |
24-bit |
32-bit |
| Max Sample Rate |
192 kHz |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5.25" |
5.25" |
| Woofer Composition |
Magnesium/aluminum alloy |
Aluminum |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
301.6mm (11.9") |
277.8mm (10.9") |
| Width |
200.0mm (7.9") |
200.0mm (7.9") |
| Depth |
336.5mm (13.2") |
322.3mm (12.7") |
| Weight |
10.00kg (22lbs) |
10.00kg (22lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Mounting Bracket |
No |
No |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Aux Inputs |
RCA |
3.5mm |
| USB Port |
USB-B |
Service only |
| Phone Input |
No |
No |
| Subwoofer Output |
Wired |
Wired |
| Digital Input |
Optical |
Optical, Coax |
| HDMI Input |
No |
eARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
1 Year |
1 Year |
| Labor Warranty |
1 Year |
1 Year |